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Finding the Fourth Proportional to 267,814.67, 401,441.76 and 90,260.37

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Solution

The fourth proportional to 267,814.67, 401,441.76 and 90,260.37 is: 135,296.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,814.67 : 401,441.76 = 90,260.37 : x
  2. Step 2: Convert to fraction form
    267,814.67/401,441.76 = 90,260.37/x
  3. Step 3: Cross multiply
    267,814.67x = 401,441.76 × 90,260.37
  4. Step 4: Simplify right side
    267,814.67x = 36,234,281,791.05
  5. Step 5: Solve for x
    x = 36,234,281,791.05/267,814.67
  6. Step 6: Final answer
    x = 135,296.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.